▎ 摘　　要

NOVELTY - Preparing mass-producing graphene powder involves filling the bottom-moving container with graphene oxide as raw material, subjecting to the laser reduction treatment to irradiate top surface of graphene oxide and reducing the graphene oxide to the graphene. The bottom of the container is moved upward to make the graphene exceed the surface of the container and collected to obtain graphene powder. The obtained product is again subjected to the laser reduction treatment to irradiate top surface of graphene oxide and reduced. USE - Method for preparing mass-producing graphene powder. ADVANTAGE - The method enables to prepare mass-producing graphene powder in cost-effective manner, and uses supplying reducing mode, which speed is matched with the reduction depth. DETAILED DESCRIPTION - Preparing mass-producing graphene powder involves filling the bottom-moving container with graphene oxide as raw material, subjecting to the laser reduction treatment to irradiate top surface of graphene oxide and reducing the graphene oxide to the graphene. The bottom of the container is moved upward to make the graphene exceed the surface of the container and collected to obtain graphene powder. The obtained product is again subjected to the laser reduction treatment to irradiate top surface of graphene oxide, reduced, moved upward the bottom of the container to make the graphene exceed the surface of the container and collected to obtain mass-producing graphene powder.